Multiple Choice Questions on One circle and rectangle have the same perimeter If the rectangle side is 18 cm and 28 cm Find the a........... for CDS Exam Preparation

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Multiple Choice Questions

One circle and rectangle have the same perimeter If the rectangle side is 18 cm and 28 cm Find the a...........

Quantitative Aptitude (CDS) Geometry
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    One circle and rectangle have the same perimeter. If the rectangle side is 18 cm and 28 cm. Find the area of the circle?

    630.5 cm^2

    Correct Answer

    673.27 cm^2

    Incorrect Answer

    600 cm^2

    Incorrect Answer

    None of these

    Incorrect Answer
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    Explanation:

    Perimeter=2(18+28)

                       =92 cm

    Circle perimeter=2πr

                        2πr=92

                       11r/7  =23   R=161/11cm

    Area=22/7  ×r×r

            =22/7  ×(23×7/11) ×(23×7/11)

       =22×(23/11) ×(23×7/11)

       =46×23×7/11

     =673.27 cm^2

    By: bhavesh kumar singh
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